Home / 18,789.03-28,188.95-8,914.73

Finding the Fourth Proportional to 18,789.03, 28,188.95 and 8,914.73

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Solution

The fourth proportional to 18,789.03, 28,188.95 and 8,914.73 is: 13,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.03 : 28,188.95 = 8,914.73 : x
  2. Step 2: Convert to fraction form
    18,789.03/28,188.95 = 8,914.73/x
  3. Step 3: Cross multiply
    18,789.03x = 28,188.95 × 8,914.73
  4. Step 4: Simplify right side
    18,789.03x = 251,296,692.72
  5. Step 5: Solve for x
    x = 251,296,692.72/18,789.03
  6. Step 6: Final answer
    x = 13,374.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.